en Nephrology Research (Original) <span style="font-size:12pt"><span style="text-autospace:none"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="color:#002060">Introduction: </span></span></b><span style="font-size:11.0pt">The prevalence of hospital infections is a matter of great importance that necessitates the identification of contributing factors and a comprehensive understanding of their epidemiology. Thus, the objective of this investigation was to analyze the epidemiology of hospital infections in various departments of Qaemshahr Valiasr Hospital from 2013 to 2017.</span></span></span></span><br> <span style="font-size:12pt"><span style="text-autospace:none"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="color:#002060">Material and Methods:</span></span></b><span style="font-size:11.0pt"> In order to achieve this, a total of 625 patients admitted to different departments of the hospital were included in the study, and after recording their demographic data, the prevalence of hospital infections was documented. The data was then compared using the Kai Squire and man Whitney tests.</span></span></span></span><br> <span style="font-size:12pt"><span style="text-autospace:none"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="color:#002060">Results:</span></span></b><span style="font-size:11.0pt"> The findings of this study revealed that the prevalence of hospital infection was determined to be 4.5%, and this was found to have a direct and statistically significant correlation with factors such as age, length of hospitalization, diabetes, urinary catheter, and ventilation (P<0.05). Additionally, the study identified the lung as the most commonly affected organ, and the bacteria cultured most frequently were E.coli and Klebsiella.</span></span></span></span><br> <span style="font-size:12pt"><span style="text-autospace:none"><span new="" roman="" style="font-family:" times=""><b><span style="font-size:9.0pt"><span style="color:#002060">Conclusion:</span></span></b><span style="font-size:11.0pt"> In light of the prevalence of hospital-acquired infections in hospitalized patients, particularly those with prolonged hospitalization, diabetes, urinary catheterization, mechanical ventilation, and advanced age, it is strongly recommended that adequate training be provided to hospital staff and that preventive measures be implemented in high-risk individuals to effectively reduce the occurrence of hospital-acquired infections and their associated complications.</span></span></span></span><br> &nbsp; Epidemiology, Hospital infections, E.coli, Klebsiella 46 54 http://tbsrj.mazums.ac.ir/browse.php?a_code=A-10-3580-4&slc_lang=en&sid=1 Melody Omraninava 100319475328460031410 100319475328460031410 Yes Assistant Professor, Hospital Administration Research Center ,Sari Branch, Islamic Azad University, Sari, Iran Samane Khosronejad 100319475328460031411 100319475328460031411 No Department of Medical Sciences, Faculty of Medicine, Sari Branch, Islamic Azad University, Sari, Iran Reza Yekani 100319475328460031412 100319475328460031412 No Department of Biochemistry and Biophysics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran. Mohammadhosein Ari Tabarestani 100319475328460031413 100319475328460031413 No Assistant Professor, Hospital Administration Research Center ,Sari Branch, Islamic Azad University, Sari, Iran Fatemeh Akbari Neserkani 100319475328460031414 100319475328460031414 No Department of Medical Sciences, Faculty of Medicine, Sari Branch, Islamic Azad University, Sari, Iran Kayvan Mohammadzadeh 100319475328460031415 100319475328460031415 No Department of Medical Sciences, Faculty of Medicine, Sari Branch, Islamic Azad University, Sari, Iran